Properties of tumor infiltrated cells induced by N-CWS.
Analysis of surface marker of cells after intratumor injection with Nocardia rubra cell wall skeleton (N-CWS) resulted in gradually increasing percentage of macrophage, Pan T and BoCD4+ cells. Proportion of BoCD8+ cells gradually increased from 4th day and then decreased from 8th day after the injection. Fresh tumor infiltrated cells obtained from lymphatic nodule at 8 days after injection of N-CWS showed cytotoxic activity against bovine leukemia cell line, but this activity decreased with the time of cultivation and no activity could be detected after 14 days cultivation. These cultured cells were injected twice to lymphatic nodule at one week interval for adoptive immunotherapy and found to induce complete regression of nodule after 5 weeks from first injection.
Yasutomi
Y
Y
Department of Veterinary Microbiology, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan.
Onuma
M
M
Davis
W C
WC
Kawakami
Y
Y
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000628:therapy*; D002473:Cell Wall / Q000276:immunology; D005260:Female; D016219:Immunotherapy, Adoptive / Q000662:veterinary*; D016246:Lymphocytes, Tumor-Infiltrating / Q000276:immunology*; D009615:Nocardia / Q000276:immunology* / Q000648:ultrastructure; D011289:Preleukemia / Q000628:therapy / Q000662:veterinary*